Home/All Parts/Borla/Borla ProXS Muffler - Notched Neck (400485)
Product Details

The Borla ProXS notched-neck muffler is a universal-fit part with a 2.5-inch center inlet and 2.5-inch dual outlet in a 4-inch by 9.5-inch oval case with a 19-inch body and 24-inch overall length. The design is reversible for installation flexibility.

Part number: 400485

Borla muffler.

Reversible design for installation flexibility. This muffler is generally used in a system that has a single inlet and dual outlets, but it can also be installed in a system with dual inlets and a single outlet. 100% welded construction for strength. Free Flow design for improved performance. High-temperature continuous-filament fiber (CFF) acoustic material for sound control.

Specifications

Manufacturer data for this part — all visible, no tabs to dig through.

BrandBorla
Part number400485
MaterialT-304 Stainless Steel
Shipping carton5 × 10 × 25 in (13 × 25 × 64 cm)
Shipping weight4.5 kg (10 lb)
Product dimensionsLength 23 in (58.4 cm)
Body height4.000 in
Outlet positionDual Rear
Overall length23.000 in
Outlet typeDual Center Outlet
Outlet outside diameter2.500 in
Body length19.000 in
Muffler count1
Main piping diameter2.500 in
Inlet typeSingle Center
Inlet positionCenter
Grade typePerformance
ConstructionAll Welded
Body width9.500 in
CategoryExhaust & Performance
Borla ProXS Muffler - Notched Neck (400...
400485
$272.99
$272.99delivered across Canada · no extra fees at delivery

Reviews

From MapleTorque customers

What customers say about MapleTorque

Awesome Send an email get reply very promptly... Send an other email weekend time ... Also get reply immediately... Alex take care of the customer to make sure everything going good during the transaction... #1 2026 Keep continu...

Eric L. Verified buyer
Store review

Quick shipping and very smooth transaction and I will certainly be checking here for future needs

Anonymous Verified buyer
Store review

Outstanding Customer Service!

Excellent shopping experience with MapleTorque! Alex was incredibly responsive, friendly, and genuinely committed to customer satisfaction. He personally helped me with pricing, made the purchase process easy, and even followed up after ...

Vasyl P. Verified buyer
Store review